So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic.Guo, Xiangyang; Ho, Chi-Tang; Schwab, Wilfried; Song, Chuankui; Wan, Xiaochun researched the compound: 2-Ethylpyrazine( cas:13925-00-3 ).HPLC of Formula: 13925-00-3.They published the article 《Aroma compositions of large-leaf yellow tea and potential effect of theanine on volatile formation in tea》 about this compound( cas:13925-00-3 ) in Food Chemistry. Keywords: theanine volatile tea leaf; Large-leaf yellow tea; Model thermal reaction; Strecker degradation; Tea aroma formation; Theanine; Volatile compounds. We’ll tell you more about this compound (cas:13925-00-3).
Large-leaf yellow tea (LYT) imparting unique toasty flavor is a traditional beverage in China. The volatile composition of LYT after full fire processing (FF-YT) was determined by different extraction methods. Steam distillation (SD), solid-phase microextraction (SPME) and headspace (HS) were applied for anal. of tea body notes, tea infusion and dry tea aroma, resp. A total of 143 volatile compounds was identified by the three methods, of which SD-FF-YT, SPME-FF-YT, and HS-FF-YT extracts contained 100, 72, and 56 volatiles, resp. Heterocyclics and aromatic compounds were the main volatile composition of LYT and might be contributors to its crispy-rice-like odor. L-Theanine was demonstrated to contribute to the formation of tea volatiles. N-Ethylacetamide, formed in the L-theanine only model thermal reaction, was probably involved in the LYT volatile formation. The current results provide new insight into L-theanine on aroma formation, although the detailed formation mechanism remains largely unknown.
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